Sensing sensor
AssigneeNihon Dempa Kogyo Co., Ltd.
InventorHiroyuki KUKITA
Life of this patent
Estimating the term…
Abstract
One side of the surfaces of the crystal resonator 4 including an adsorbing film 46 that absorbs a sensing object on an excitation electrode 42A is pressed with the channel forming member 5 using the upper-side cover body 21 to fonn a channel 57, which runs from one end side to the other end side on one side of surfaces of the crystal resonator 4. A depressed portion 84 is disposed in at least one of: a position opposed to the channel 57 and at a surface on an opposite side of the channel 57 in the channel forming member 5, and a position opposed to the channel 57 and at a surface on the opposite side of the channel 57 in the pressing member with respect to the channel forming member 5.
Claims3
A sensing sensor comprising:
- a wiring board having one surface side on which a depressed portion is formed;
- a piezoelectric resonator including a piezoelectric piece on which an excitation electrode electrically connected to a conductive path of the wiring board is disposed, the piezoelectric resonator having one surface side on which an adsorbing film that adsorbs a sensing object in a sample solution is formed, the piezoelectric resonator being secured to the wiring board in a state where a vibrating region is opposed to the depressed portion to cover the depressed portion;
- a channel forming member disposed to cover a region in the one side of the wiring board including the piezoelectric resonator, the channel forming member forming a channel between the piezoelectric resonator and the channel forming member, the channel communicating with an injection port of the sample solution;
- and
- a pressing member that presses a surface on an opposite side of the wiring board in the channel forming member to press the channel forming member against the wiring board, wherein
- the sensing sensor is configured to form a clearance between the pressing member and a portion on an opposite side of the channel in the channel forming member to prevent the channel from being collapsed when the pressing member presses the channel forming member.
Dependencies are inferred from the claim text.